Electromagnetic Radiation
H4-52: SPECTRUM ANALYSIS OF MODULATION
Category: H4 Music
Purpose:
Compare and analyze the frequency spectra of various modulated sounds such as tremolo, vibrato, and beats.
H4-51: MODULATION - AM AND FM
Category: H4 Music
Purpose:
Demonstrate AM and FM signal modulation as an introduction to vibrato and tremolo.
L3-18: FOCUSING OF HEAT WAVES - OVERHEAD PROJECTOR
Category: L3 Curved Mirrors
Purpose:
Illustrate focusing of heat in a very dramatic way.
E2-49: PULSAR MODEL - RADIOWAVES
Category: E2 Astronomy
Purpose:
Show the changing field pattern from a rotating dipole.
K8-04: SPEED OF LIGHT
Category: K8 Electromagnetic Waves and Sources
Purpose:
Measure the speed of light
K2-63: DISPLACEMENT CURRENT MODEL
Category: K2 Electromagnetic Induction
Purpose:
Illustrate the geometry for displacement current
I2-12: RADIATION FROM COLD OBJECT
Category: I2 Transfer of Heat
Purpose:
Show radiation from a cold object
K8-42: RADIOWAVES - ENERGY AND DIPOLE PATTERN
Category: K8 Electromagnetic Waves and Sources
Purpose:
Demonstrates transmission of energy in electromagnetic waves. Shows the radiation pattern of the dipole antenna
K8-45 RADIO WAVES FROM SPARK
Category: K8 Electromagnetic Waves and Sources
Purpose:
Demonstrates that a spark contains radio waves
K8-03 LIGHT NANOSECOND
Category: K8 Electromagnetic Waves and Sources
Purpose:
Shows the distance light travels in one nanosecond
K8-01 ELECTROMAGNETIC WAVE - MODEL
Category: K8 Electromagnetic Waves and Sources
Purpose:
Shows the relationship between the electric and magnetic field vectors in a plane-polarized traveling electromagnetic wave
J3-23 FARADAY CAGE - RADIOWAVES
Category: J3 Electric Fields and Potential
Purpose:
Demonstrates that radio waves cannot penetrate a Faraday cage
I2-08 RADIATIVE HEAT TRANSFER
Category: I2 Transfer of Heat
Purpose:
Shows radiation from a hot object
I2-06 THERMOPILE WITH AUDIO OSCILLATOR
Category: I2 Transfer of Heat
Purpose:
Observe infrared radiation
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K8-01 ELECTROMAGNETIC WAVE - MODEL
Shows the relationship between the electric and magnetic field vectors in a plane-polarized traveling electromagnetic wave
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K8-03 LIGHT NANOSECOND
Shows the distance light travels in one nanosecond
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K8-04: SPEED OF LIGHT
Measure the speed of light Read More
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K8-05: ELECTROMAGNETIC PLANE WAVE MODEL
Illustrate the geometry of a polarized electromagnetic plane wave Read More
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K8-11: MICROWAVES - STANDING WAVES
Demonstrate microwave standing waves Read More
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K8-12: RADIOWAVES - STANDING WAVES
Demonstrate standing waves using radio waves Read More
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K8-13: RADIOWAVES - LECHER WIRE STANDING WAVES
Illustrate standing electromagnetic waves in a high-impedance transmission line Read More
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K8-14: RADIOWAVES - STANDING WAVES IN AN ANTENNA
Show standing waves in a dipole antenna Read More
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K8-21: MICROWAVES - WAVEGUIDES
See what microwave waveguide components look like and to discuss their functions Read More
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K8-22: MICROWAVES - TUBULAR WAVEGUIDE
Demonstrate transmission of microwaves in a tubular "waveguide" Read More
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K8-31: TRANSMISSION LINE SAMPLE
Show a large coaxial cable transmission line Read More
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K8-32: PULSES IN TRANSMISSION LINES
Demonstrate the reflection of pulses in terminated and unterminated transmission lines and to determine the speed of an electromagnetic wave… Read More
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K8-33: NANOSECOND CABLES
Cables which delay a signal by a fixed time interval Read More
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K8-41: HERTZIAN DIPOLES
Show the shape and polarization of the radiation field around a dipole antenna Read More
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K8-42: RADIOWAVES - ENERGY AND DIPOLE PATTERN
Demonstrates transmission of energy in electromagnetic waves. Shows the radiation pattern of the dipole antenna
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K8-43: RADIOWAVES - FREQ MEASUREMENT WITH OSCILLOSCOPE
Experimentally determine the frequency of the radiowave transmitter Read More
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K8-44: RADIOWAVES - COUPLING OF WAVES
Illustrate inductive coupling using radio waves Read More
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K8-45 RADIO WAVES FROM SPARK
Demonstrates that a spark contains radio waves
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K8-46: Radio Waves & Faraday Cage
Demonstrate that a conductive cage blocks transmission of RF waves. Read More
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K8-51: MICROWAVE OVEN
Demonstrate operation and experimentation with a microwave oven Read More
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K8-52: MICROWAVE MAGNETRON
Show students what the magnetron tube from a typical microwave oven looks like Read More
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